Cosmological moduli problem in a supersymmetric model with direct gauge mediation

Journal Article · Tue Dec 01 04:00:00 EST 1998 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.58.124008· OSTI ID:670268

Moroi, T ^[1]

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1. Theoretical Physics Group, Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720 (United States)

Recently, an interesting class of direct gauge mediation supersymmetry (SUSY) breaking models were proposed, in which the minimum of the potential of the SUSY breaking field was determined by the inverted hierarchy mechanism. We consider their cosmological implications. In this class of models, the SUSY breaking field has a very flat potential, which may have cosmological importance. Assuming the initial amplitude of the SUSY breaking field to be of the order of the Planck scale, it can be a source of large entropy production. Special attention is paid to the cosmological moduli problem, and we will see that the cosmological mass density of the moduli field can be significantly reduced. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 670268
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 12 Vol. 58; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COSMOLOGICAL MODELS
COSMOLOGY
ENTROPY
GAUGE INVARIANCE
GRAVITATION
SUPERSYMMETRY
SYMMETRY BREAKING